| 摘要 |
A blood pressure measuring apparatus, including a cuff adapted to be worn on a body portion of a living subject, and determining a blood pressure value of the subject based on a signal obtained from the cuff when a pressure in the cuff is changed, wherein the apparatus includes: a cuff pulse wave detecting device which detects a cuff pulse wave as a pulse wave produced from an artery of the subject and transmitted to the cuff, the cuff pulse wave comprising at least one heartbeat-synchronous pulse produced from the artery in synchronism with at least one heartbeat of the subject; a converting device which converts, based on the blood pressure value determined by the apparatus, a magnitude of each point of the heartbeat-synchronous pulse of the cuff pulse wave, into a pressure value; and a pseudo-pressure-pulse-wave determining device which determines a pseudo pressure pulse wave by correcting the respective pressure values of the respective points of the pulse, provided by the converting device, according to at least one correction relationship between (A) proportion of difference of pressure value of each point of heartbeat-synchronous pulse from pressure value of minimum point of the pulse, to pulse pressure as difference of pressure value of maximum point of the pulse from the pressure value of the minimum point of the pulse, and (B) correction amount, in which greater correction amount corresponds to greater proportion.
|
